01 -
Thoroughly butter one side of each slice of bread. Set aside.
02 -
Combine the ground beef, pepper, salt, and onion powder in a bowl. Mix until the spices are evenly distributed. Shape into three patties matching the shape of the bread.
03 -
Preheat a nonstick skillet over medium-high heat. Cook the patties for 2-3 minutes per side. Reduce heat to low and continue cooking for an additional 5 minutes until the patties are uniformly brown. Check internal temperature with a digital thermometer; it should reach 71°C (160°F).
04 -
In a small bowl, mix mayonnaise, ketchup, bacon bits, relish, and sugar until well blended. Set aside.
05 -
Heat a second skillet on medium-low heat. Place one slice of bread (butter-side down) in the skillet. Layer with two slices of cheddar cheese, a cooked patty, and two slices of Provolone cheese. Spread the sauce on the unbuttered side of a second bread slice, placing it sauce-side down on top of the cheese.
06 -
Cook each side of the sandwich in the skillet for 2-3 minutes until the bread is lightly toasted. Repeat the process for the remaining sandwiches.
07 -
Remove the sandwiches from the skillet, serve, and enjoy.